ABS Warning - Not able to resolve it

My Punto 1.4 Emotion Pack developed ABS not available warning since last week, i went to service center but they were not able detect it.
Anybody can help to guide what to check and how to get it resolved. I am not sure whether it will affect by daily driving.
Please guide and give your inputs.

My Punto 1.4 Emotion Pack developed ABS not available warning since last week, i went to service center but they were not able detect it.
Anybody can help to guide what to check and how to get it resolved. I am not sure whether it will affect by daily driving.
Please guide and give your inputs.

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I had the same problem and the service was dumbfounded when asked to find the issue. It took him nearly hours before he said the 'Sensor' in one of the wheels were blown out. replaced and the warning was gone. Touch wood.